http://localhost:8889/graphiql
http://localhost:8899/graphiql

curl --location --request POST 'http://localhost:8889/graphql' \
--form 'operations="{ \"query\": \"mutation FileUpload($file: Upload!) {fileUpload(file: $file){id}}\" , \"variables\": {\"file\": null}}"' \
--form 'file=@"/home/nkonev/Pictures/mad.jpg"' \
--form 'map="{\"file\": [\"variables.file\"]}"'

curl --location --request POST 'http://localhost:8899/graphql' \
--form 'operations="{ \"query\": \"mutation FileUpload($file: Upload!) {fileUpload(file: $file){id}}\" , \"variables\": {\"file\": null}}"' \
--form 'file=@"/home/nkonev/Pictures/mad.jpg"' \
--form 'map="{\"file\": [\"variables.file\"]}"'

--- variation
curl --location --request POST 'http://localhost:8889/graphql' \
--form 'operations="{ \"query\": \"mutation FileUpload($file: Upload!) {fileUpload(file: $file){id}}\" , \"variables\": {\"file\": null}}"' \
--form 'fileForm1=@"/home/nkonev/Pictures/mad.jpg"' \
--form 'map="{\"fileForm1\": [\"variables.file\"]}"'

-- multiple
curl --location --request POST 'http://localhost:8899/graphql' \
--form 'operations="{ \"query\": \"mutation FilesUploads($files: [Upload!]!) {multiFileUpload(files: $files){id}}\" , \"variables\": {\"files\": [null, null]}}"' \
--form 'filePart1=@"/home/nkonev/Pictures/mad.jpg"' \
--form 'filePart2=@"/home/nkonev/Pictures/streamboat.jpg"' \
--form 'map="{\"filePart1\": [\"variables.files.0\"], \"filePart2\": [\"variables.files.1\"]}"'

-- multiple
curl --location --request POST 'http://localhost:8889/graphql' \
--form 'operations="{ \"query\": \"mutation FilesUploads($files: [Upload!]!) {multiFileUpload(files: $files){id}}\" , \"variables\": {\"files\": [null, null]}}"' \
--form 'filePart1=@"/home/nkonev/Pictures/mad.jpg"' \
--form 'filePart2=@"/home/nkonev/Pictures/streamboat.jpg"' \
--form 'map="{\"filePart1\": [\"variables.files.0\"], \"filePart2\": [\"variables.files.1\"]}"'